Friday, August 05, 2016

Television sets have changed over the years and not just in what
you can see by looking at them. The first big change was physical: replacing
the cathode tube with a LCD flat panel that not only made the TV thinner and
lighter, but also enabled it to convey a higher resolution for a more detailed
picture. Since the advent of the HDTV, improvements in how the TV works have
featured what couldn’t be seen until turned on — new and more exciting
technologies in the electronics that powered the TV’s display being visible
ever time it was turned on. The most recent is HDR, a.k.a. High Dynamic Range.
These three simple words mean a lot when it comes time to watch.

What is HDR

To understand what HDR is, consider how it’s used in photography.
When HDR is active, a picture is taken but in reality 3 pictures are actually
shot: one underexposed, one overexposed and one that is “between” the two (or
the “normal” shot as it were). The three images are then combined to form a
single picture which allows for both the shadow areas and the highlights to be
brilliantly displayed. With the TV picture, the normal contrast range can’t be
used to increase detail, even if fiddled with to expand its view between light
and dark. But HDR works at increasing the distance between light and dark while
at the same time increasing the detail that contrast enhancing normally blurs.
HDR obviates the old standards that “locked in” the picture to date

What is HDR’s Value

The advantages of watching a HDR TV’s picture can be immediately apparent. Thanks to being able to
display a wider gamut of color and brightness, the HDR TV’s picture will be
more vibrant and dynamic. Colors with be brighter and more rich and subtle
(having more shades), while the level of detail will also have increased. This
means that you aren’t getting inky dark pools where there are shadows but can
“see” into them as you would in real life. The same goes for very bright areas
which are no longer being “washed out.”

Content Must Have HDR Built-In

The video signal (i.e., the “content”) coming into the TV must be
HDR-compliant if the TV with HDR can show off what it can do. There is the HDR10
standard which follows the baseline specifications for HDR content, and this
standard will be found doing its thing in the upcoming Xbox One S game console.
HDR-compliant discs are also available for watching through a 4K Blu-ray player
(on a 4K HDR TV of course).There’s also
Dolby Vision, which is being supported by some of the movie studios and some
streaming services, for example Netflix and Vudu (since the Dolby Vision decoder that’s in the TV can also
handle HDR10, no fears there).

How to Get HDR

HDR can’t be gotten through a firmware update or by fiddling with
settings — you need to get a TV that has HDR built right into the electronics.
Fortunately that’s easy, because there are many TVs where HDR is integrated into them. All you need
to do is look at the name (in some cases) or at the TVs specifications in order to see that HDR is part
of what you’re getting.

Getting a new TV is always exciting, but being able to get a new TV
that has HDR as part of it all means that you’re getting is a dynamic
picture that is so much better than what has come before. That’s something you
can see every time you sit back and watch.